Home / 13,416.82-20,125.22-3,557.09

Finding the Fourth Proportional to 13,416.82, 20,125.22 and 3,557.09

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Solution

The fourth proportional to 13,416.82, 20,125.22 and 3,557.09 is: 5,335.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,416.82 : 20,125.22 = 3,557.09 : x
  2. Step 2: Convert to fraction form
    13,416.82/20,125.22 = 3,557.09/x
  3. Step 3: Cross multiply
    13,416.82x = 20,125.22 × 3,557.09
  4. Step 4: Simplify right side
    13,416.82x = 71,587,218.81
  5. Step 5: Solve for x
    x = 71,587,218.81/13,416.82
  6. Step 6: Final answer
    x = 5,335.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.